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(No-Model.) W. C. ROCKWELL.v

TIN 110GB GLEAT.

No. 331,655. PatentedrDec. 1, 1885.

ATTORNEYS.

,Unirse Sterns parlarvi Carien.

lVARREN C. ROCKVELL, OF MOUNT CARMEL, ASSIGNCR TC HIMSELF AND LUDLUM B. ROCKWELL AND FRANCIS S. ROCKVELL, CF BUNBURY, PA.

TlNROOF CLEAT.

SPECIFICATION .forming part of Letters Patentio. 331,655, dated ecernber 1, 1885.

Application led May '7, 1385. Serial No.164,71. (No model.)

To all whom t may concern.-

Be it known that I, WARREN C. RooKwnLL, a citizen of the United States, residing at Mount Carmel, in the county of Northumberland and State of Pennsylvania, have invented a new and useful Improvement in Tin-Roof Cleats, oi' which the following` is a description.

Figure 1 shows a side view of the roof- Io cleat. Fig. 2 represents a section of roof transversely to the seams,.showing on the leftthe first step and on the right the second step of securing the plates. Fig. 3 is an enlarged section showing the final bending and coinpletion of the seam.

The object of my invention is to provide a means for more securely anchoring or tying a a tin or other sheet-metal roof down to the sheathing, and which will permit of the conzo venient and expeditious application of the sheets forming the roof in a cheap and simple manner.

It consists in a cleat formed of a flat piece of sheet metal having asquare staple incorporated in a bend of its lower end, and whose upper end is adapted to be folded and fastened in the bending operation in the seam, as will be hereinafter fully described.

ln the drawings, A represents the sheet- 3o metal portion of the cleat, and B is the square staple, whose middle portion is contained in a bend of the lower portion of the sheet metal A. The shanks of the staple are preferably twisted or barbed to give them greater holding-power in the wooden sheathing, and the sheet-metal part of the cleat is preferably lnade widest at the top, and is slit longitudinally.

In laying a roof with this cleat the unfin- .ro ished edge X of roofing has the upturned flange a, against which is to be fitted the upturned ilange a of the next strip of tin, A. Before applying this strip of tin A', however, the cleat is secured to the sheathing by driving 4 5 its staple into the sheathing parallel with and close up against the standing` flange a of the unfinished roof-section, with the sheet'rnetal part A projecting above and lying dat against the said lange a. The next strip A of 5o tin is then laid with its ange a fiat against the iange a of the strip previously laid, leaving the cleat between, as shown on the left of Fig. 2. Now one of the slitted ends, c, of the cleat is bent over one iiange, a, and the other slitted end, c', is bent over the other flange, a, 55 as shown on the right of Fig. 2, and the seamer then turns the whole into two or more folds in the usual manner, leaving the rib or seam as shown completed at C in Fig. 3, in which the slitted ends of the cleat are thoroughly 6o anchored, while the staple iirnily holds the the same down to the sheathing.

A great advantage that the staple has over the nails which have heretofore been driven through the cleat into the sheathing is, rst, 6 5 that the staple does not pierce the sheet metal, but has a broad bearing against it in the bend which holds it tightly down to the sheathing and does not allow it to work loose from the wind. Willen nails are driven through the sheet-metal cleats, they tear holes through it and leave lines of fracture, and as the head of the nail has but little bearing the working of the roof up and down from the wind is apt to work the nail-holes larger than the heads, and eventually they possess no holding-power, the wind passing under the roof tears it O.

I ain aware that the standing seam of a roof has been fastened down by a staple on the outside that straddled the seam and 8o pierced the roof; but in this case the extra expense is incurred of soldering around each of the prongs of the thousands of staples in a roof, and at best the roof is apt to be leaky.

The cleats, as formed of the sheet-metal 8 5 section with the staple attached, are designed to be furnished to the trade ready made, and, while being greatly superior to the old forms of fastening, they are also cheap and save a great dealof bother and annoyance in cutting 9c the cleats.

As a modification of my invention, I may make the sheet-metal part A of the cleat in two pieces of equal size, folded at their lower ends around thc staple and folded reversely at the top.

Having thus described my invention, what I claim as new isl. A cleat for sheetinetal rooflseains, consisting of a staple having a square or rightroo angular middle portion and a sheet-metal strip having one end folded around said staple, substantially as described.

2. A cleat for sheet-metal roof-sean1s, consisting of a staple having a square or rightangular middle part and a sheet-metal strip, having one end folded around the middle part of the staple and the other end made wider and slitted, as described.

3. A sheet-metal roof consisting of strips of sheet metal having npturned adjacent flanges combined with a sheet-metal cleat arranged between the upturncd flanges and folded therewith into a seam, the said cleat having its lower end folded around a square staple arranged below the roof and driven into the sheathing, substantially as and for the purpose described.

4. A sheet-metal roof consisting of strips of sheet metal having upturned adjacent flanges 2o roof and driven into the sheathing, the said 25 cleat and sheet-metal flanges being turned over to form a seam, as described.

WARREN C. ROCKWELL.

Witnesses:

H. H. WILLIAMS, J. I. MILLER. 

